Wind power generator

Abstract

The present invention relates to a wind power generator. The power generator comprises a wing section including a hub, wings and a pitch angle control unit. The pitch angle control unit comprises a bearing and a first drive part, and the hub comprises an installation area used for a second drive part having a second drive gear to be engaged, in case an available area of the internal gear is damaged, with an area that is different from the available area of the internal gear. Accordingly, the maintenance and repair work can be facilitated and the maintenance and repair costs can be reduced.

1 . A wind power generator comprising:
 a tower;   a nacelle rotatably supported by the tower; and   a wing section arranged in front of the nacelle,   wherein the wing section comprises:   a hub;   a wing coupled to the hub; and   a pitch angle control unit interposed between the hub and the wing and configured to control a pitch angle of the wing, and   wherein the pitch angle control unit comprises:   a bearing comprising an outer wheel coupled with the hub and an inner wheel coupled with the wing and formed with an internal gear on an internal surface thereof; and   a first drive part comprising a first drive gear engaged with the internal gear, the first drive part being installed in the hub so as to provide driving power for rotating the inner wheel about the outer wheel, and   wherein the hub is provided with an installation area for installing a second drive part having a second drive gear to be engaged, in case an available area of the internal gear is damaged, with an area that is different from the available area of the internal gear.   
     
     
         2 . The wind power generator of  claim 1 , wherein the pitch angle control unit further comprises a first lubricant supply part configured to supply lubricant between the first drive gear and the internal gear. 
     
     
         3 . The wind power generator of  claim 1 , wherein the pitch angle control unit further comprises a second lubricant supply unit configured to supply lubricant between the second drive gear and the internal gear. 
     
     
         4 . The wind power generator of  claim 1 , wherein, in case an available area of the internal gear is damaged, the first drive part is removed from the hub and then is used as the second drive part installed in the installation area. 
     
     
         5 . The wind power generator of  claim 1 , wherein, in case an available area of the internal gear is damaged, the first drive gear of the first drive part is used as the second drive gear. 
     
     
         6 . The wind power generator of  claim 2 , wherein, in case an available area of the internal gear is damaged, the first drive part is removed from the hub and then is used as the second drive part installed in the installation area. 
     
     
         7 . The wind power generator of  claim 3 , wherein, in case an available area of the internal gear is damaged, the first drive part is removed from the hub and then is used as the second drive part installed in the installation area. 
     
     
         8 . The wind power generator of  claim 2 , wherein, in case an available area of the internal gear is damaged, the first drive gear of the first drive part is used as the second drive gear. 
     
     
         9 . The wind power generator of  claim 3 , wherein, in case an available area of the internal gear is damaged, the first drive gear of the first drive part is used as the second drive gear.